public class MainClass5 {
    public static void main(String[] args){
        for(int counter=0;counter<=10;counter++){
            System.out.printf("%d!=%d\n",counter,factorial(counter));
        }
    }
    public static long factorial(long number){
        if(number<=1){
            return 1;
        }else{
            return number*factorial(number-1);
        }
    }
}
